Subscription lifecycle in GraphQL - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start a subscription for a user.

GraphQL

mutation StartSubscription { startSubscription(userId: [1]) { id status } }

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AuserId

B12345

C"12345"

DsubscriptionId

Attempts:

3 left

💡 Hint

Common Mistakes

Using an unquoted number for userId causes syntax errors.

Using variable names instead of actual values.

The userId must be a string in quotes in GraphQL mutations.

2fill in blank

medium

Complete the code to query the subscription status.

GraphQL

query GetSubscriptionStatus { subscription(id: [1]) { status } }

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A"sub_001"

B123

Cstatus

DuserId

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted IDs causes errors.

Confusing field names with ID values.

Subscription IDs are strings and must be quoted in GraphQL queries.

3fill in blank

hard

Fix the error in the mutation to cancel a subscription.

GraphQL

mutation CancelSubscription { cancelSubscription(id: [1]) { id status } }

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A"sub_123"

Bid

CsubscriptionId

Dsub_123

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting quotes around string IDs.

Using variable names instead of actual values.

The subscription ID must be a string in quotes for the mutation to work.

4fill in blank

hard

Fill both blanks to query active subscriptions for a user.

GraphQL

query ActiveSubscriptions { user(id: [1]) { subscriptions(status: [2]) { id } } }

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A"user_789"

B"active"

C"inactive"

DuserId

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted strings for IDs or status.

Using wrong status values.

User ID and status must be strings in quotes in GraphQL queries.

5fill in blank

hard

Fill all three blanks to update subscription status with a mutation.

GraphQL

mutation UpdateSubscription { updateSubscription(id: [1], status: [2]) { id [3] } }

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A"sub_456"

B"paused"

Cstatus

DuserId

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting string arguments.

Returning wrong fields in the response.

The subscription ID and status must be strings, and the field to return is 'status'.